: Data-Field 21012

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Data

92,393 bulk items are available, covering 89,262 participants.
Defined-instances run from 0 to 3, labelled using Instancing 2.
Array indices run from 0 to 1.

The values held within this field are coded links to files held within a bulk repository, not the actual data itself.

4 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
67,656 participants, 68,178 items
Data not meaningful for statistical summary

Instance 1 : First repeat assessment visit (2012-13)
19,420 participants, 19,444 items
Data not meaningful for statistical summary

Instance 2 : Imaging visit (2014+)
2,320 participants, 2,328 items
Data not meaningful for statistical summary

Instance 3 : First repeat imaging visit (2019+)
2,435 participants, 2,443 items
Data not meaningful for statistical summary

Notes

The fds file contains the raw fundus image and 3D OCT scan data for the left eye. File size is typically 97 MB.

2 Related Data-Fields

Field ID	Description	Relationship
21011	FDA data file (left)	Field 21011 contains the processed data derived from Current Field
21014	FDS data file (right)	Current Field is the opposite-side complement to Field 21014

6 Resources

Preview	Name	Res ID
	Example FDS file	30
	OCT measurement	100113
	OCT measurement station	100132
	OCT scan in progress	100114
	OCT scan view	100115
	Optical-coherence tomography procedures using ACE	100237

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